Sorry but I don't know the proper names for each pane in the program.
When I run MC, the main screen comes with JRiver Media Center information on the right side and objects, including "Audio" on the left. It is the "Audio" section to which this refers. I Open "Audio" and get a list of panes. When I open "Genres" all of the data I have ripped is available. When I select the objects below, "Classical" for example, it opens and shows all of the "Classical" sub-genres.
If I select anything at this point, the right pane shows album covers. This just happened. Previously it displayed album details, including all of the tracks. How do I get this back?